まず、Cl7Na5O6N4H12He4Br2N5AuSi2F5Al2FeK6UFrAmRu 内の各原子の数を計算します。
Cl: 7, Na: 5, O: 6, N: 9, H: 12, He: 4, Br: 2, Au: 1, Si: 2, F: 5, Al: 2, Fe: 1, K: 6, U: 1, Fr: 1, Am: 1, Ru: 1
次に、周期表の各元素の原子量を調べます。
Cl: 35.453, Na: 22.98976928, O: 15.9994, N: 14.0067, H: 1.00794, He: 4.002602, Br: 79.904, Au: 196.966569, Si: 28.0855, F: 18.9984032, Al: 26.9815386, Fe: 55.845, K: 39.0983, U: 238.02891, Fr: 223.0197359, Am: 241.0568291, Ru: 101.07
次に、原子数と原子量の積の合計を計算します。
モル質量 (Cl7Na5O6N4H12He4Br2N5AuSi2F5Al2FeK6UFrAmRu) = ∑ Counti * Weighti =
Count(Cl) * Weight(Cl) + Count(Na) * Weight(Na) + Count(O) * Weight(O) + Count(N) * Weight(N) + Count(H) * Weight(H) + Count(He) * Weight(He) + Count(Br) * Weight(Br) + Count(Au) * Weight(Au) + Count(Si) * Weight(Si) + Count(F) * Weight(F) + Count(Al) * Weight(Al) + Count(Fe) * Weight(Fe) + Count(K) * Weight(K) + Count(U) * Weight(U) + Count(Fr) * Weight(Fr) + Count(Am) * Weight(Am) + Count(Ru) * Weight(Ru) =
7 * 35.453 + 5 * 22.98976928 + 6 * 15.9994 + 9 * 14.0067 + 12 * 1.00794 + 4 * 4.002602 + 2 * 79.904 + 1 * 196.966569 + 2 * 28.0855 + 5 * 18.9984032 + 2 * 26.9815386 + 1 * 55.845 + 6 * 39.0983 + 1 * 238.02891 + 1 * 223.0197359 + 1 * 241.0568291 + 1 * 101.07 =
2268.7932 g/mol
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